Ключевые слова: background, beijing, box, button, card, city, cold, colored, communicate, commutation, condition, conditioner, conditioning, control, cool, cooling, display, electric, electricity, electronic, electronics, energy, equipment, hand, home, insert, isolated, keypad, metal, number, object, outside, pay phone, phone, power, public, public phone, remote, ring, square, street, telecom, telephone, tianamen, travel, urban, yellow,